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CI 77891

Description

CI 77891, also known as titanium dioxide, is a widely used inorganic compound in skincare and cosmetic formulations. This white, opaque pigment serves multiple functions, primarily as a UV filter and colorant. Titanium dioxide offers broad-spectrum protection against both UVA and UVB rays, making it an essential ingredient in many sunscreens and daily moisturizers with SPF.

In skincare products, CI 77891 acts as an effective physical sunblock, reflecting and scattering UV radiation away from the skin. Its particle size can be manipulated to create different effects, from a visible white cast to a more transparent finish. Titanium dioxide is generally considered safe for most skin types and is less likely to cause irritation compared to some chemical sunscreens.

Beyond sun protection, CI 77891 is valued for its ability to brighten and even out skin tone, making it a common ingredient in foundations, concealers, and other color cosmetics. It's also used as a thickening agent and opacifier in various formulations. The FDA has approved titanium dioxide for use in food, drugs, and cosmetics, though concerns about nanoparticle formulations have led to ongoing research and regulatory scrutiny.